Skip to content
Fencer Vulns
high 8.8

CVE-2026-1784 json

Ose-cluster-ingress-operator: remote code execution through haproxy configuration injection

published 2026-06-02 5 mo ago modified 2026-10-01 38 d ago also EUVD-2026-33883

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits
0
none known

Summary

The Route OpenShift resource allows to define routes to make pods reachable at a subdomain through HAProxy. It was found that the checks performed on the spec.path YAML stanza in a Route document was insufficient and could allow a controlled injection of the HAProxy configuration.

Patch / fix

  • Red Hat Red Hat OpenShift Container Platform 4.12 1789911929
  • Red Hat Red Hat OpenShift Container Platform 4.13 1781123014
  • Red Hat Red Hat OpenShift Container Platform 4.14 1781870101
  • Red Hat Red Hat OpenShift Container Platform 4.15 1781928857
  • Red Hat Red Hat OpenShift Container Platform 4.16 1780962617
  • Red Hat Red Hat OpenShift Container Platform 4.18 1780988280
  • Red Hat Red Hat OpenShift Container Platform 4.19 1780043338
  • Red Hat Red Hat OpenShift Container Platform 4.20 1780990977
  • Red Hat Red Hat OpenShift Container Platform 4.21 1780444348

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-1784 updated cvss 8.8

ose-cluster-ingress-operator: Remote Code Execution Through HAProxy Configuration Injection

  • Red Hat OpenShift Container Platform 4.12 openshift4/ose-cluster-ingress-operator 1789911929
    fixed: vendor fix RHSA-2026:70647
  • Red Hat OpenShift Container Platform 4.13 openshift4/ose-cluster-ingress-operator 1781123014
    fixed: vendor fix RHSA-2026:26543
  • Red Hat OpenShift Container Platform 4.14 openshift4/ose-cluster-ingress-operator 1781870101
    fixed: vendor fix RHSA-2026:28893
  • Red Hat OpenShift Container Platform 4.15 openshift4/ose-cluster-ingress-rhel9-operator 1781928857
    fixed: vendor fix RHSA-2026:28964
  • Red Hat OpenShift Container Platform 4.16 openshift4/ose-cluster-ingress-rhel9-operator 1780962617
    fixed: vendor fix RHSA-2026:25045
  • Red Hat OpenShift Container Platform 4.18 openshift4/ose-cluster-ingress-rhel9-operator 1780988280
    fixed: vendor fix RHSA-2026:25182
  • Red Hat OpenShift Container Platform 4.19 openshift4/ose-cluster-ingress-rhel9-operator 1780043338
    fixed: vendor fix RHSA-2026:23246
  • Red Hat OpenShift Container Platform 4.20 openshift4/ose-cluster-ingress-rhel9-operator 1780990977
    fixed: vendor fix RHSA-2026:25194
show 2 more
  • Red Hat OpenShift Container Platform 4.21 openshift4/ose-cluster-ingress-rhel9-operator 1780444348
    fixed: vendor fix RHSA-2026:23241
  • Red Hat OpenShift Container Platform 4.12 openshift4/ose-cli 1789911809, openshift4/ose-pod 1789911943, openshift4/ose-etcd 1789912378, openshift4/ose-tests 1789913848, openshift4/ose-console 1790102793, openshift4/ose-coredns 1789911804, +183 more Red Hat OpenShift Container Platform 4.13 openshift4/ose-cli 1781123265, openshift4/ose-pod 1781123214, openshift4/ose-tests 1781149385, openshift4/ose-console 1781178198, openshift4/ose-coredns 1781123476, openshift4/ose-deployer 1781124358, +184 more Red Hat OpenShift Container Platform 4.14 openshift4/ose-cli 1781822479, openshift4/ose-pod 1781829374, openshift4/ose-tests 1782189317, openshift4/ose-console 1782157414, openshift4/ose-coredns 1781822636, openshift4/ose-deployer 1781830664, +191 more Red Hat OpenShift Container Platform 4.15 openshift4/ose-cli 1781813947, openshift4/ose-tests 1782127009, openshift4/ose-console 1782127091, openshift4/ose-deployer 1781822405, openshift4/ose-installer 1781868012, openshift4/ose-pod-rhel9 1781928057, +186 more Red Hat OpenShift Container Platform 4.16 openshift4/ose-cli-rhel9 1780428340, openshift4/ose-pod-rhel9 1780965588, openshift4/ose-sdn-rhel9 1780957869, openshift4/ose-etcd-rhel9 1780955050, openshift4/ose-tests-rhel9 1780967969, openshift4/ose-tools-rhel9 1780959715, +184 more Red Hat OpenShift Container Platform 4.18 openshift4/frr-rhel9 1780977570, openshift4/ose-cli-rhel9 1780980237, openshift4/ose-pod-rhel9 1780982716, openshift4/ose-etcd-rhel9 1780983250, openshift4/ose-tests-rhel9 1781088680, openshift4/ose-tools-rhel9 1781087154, +182 more
    +3 more products
    Red Hat OpenShift Container Platform 4.19 openshift4/frr-rhel9 1780041886, openshift4/ose-cli-rhel9 1780454976, openshift4/ose-pod-rhel9 1780040715, openshift4/ose-etcd-rhel9 1780060002, openshift4/ose-tests-rhel9 1780466471, openshift4/ose-tools-rhel9 1780462550, +182 more Red Hat OpenShift Container Platform 4.20 openshift4/frr-rhel9 1780990543, openshift4/ose-cli-rhel9 1780989999, openshift4/ose-pod-rhel9 1780989978, openshift4/ose-etcd-rhel9 1780993695, openshift4/ose-tests-rhel9 1781065416, openshift4/ose-tools-rhel9 1780990762, +184 more Red Hat OpenShift Container Platform 4.21 openshift4/frr-rhel9 1779777945, openshift4/ose-cli-rhel9 1780056704, openshift4/ose-pod-rhel9 1779778997, openshift4/ose-etcd-rhel9 1780056652, openshift4/ose-tests-rhel9 1780474448, openshift4/ose-tools-rhel9 1780472827, +181 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
5 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CISA ADP 3.1 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

  • Red Hat Red Hat OpenShift Container Platform 4.12
  • Red Hat Red Hat OpenShift Container Platform 4.13
  • Red Hat Red Hat OpenShift Container Platform 4.14
  • Red Hat Red Hat OpenShift Container Platform 4.15
  • Red Hat Red Hat OpenShift Container Platform 4.16
  • Red Hat Red Hat OpenShift Container Platform 4.18
  • Red Hat Red Hat OpenShift Container Platform 4.19
  • Red Hat Red Hat OpenShift Container Platform 4.20
  • Red Hat Red Hat OpenShift Container Platform 4.21

Classification

Weakness
  • CWE-15 External Control of System or Configuration Setting

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.